Single Choice

Alum is water purifier because it___________

Acoagulates the impurities
Correct Answer
Bsoften hard water
Cgives taste
Ddestroys the pathogenic bacteria

Solution

Alum contains many cations and water has anionic impurities. On adding alum coagulates the suspended impurities and make water fit for drinking purposes.

SIMILAR QUESTIONS

s - block Elements (Alkali and Alkaline Earth Metals)

An example of Alum is___________.

s - block Elements (Alkali and Alkaline Earth Metals)

Which of the following is not true about potash alum?

s - block Elements (Alkali and Alkaline Earth Metals)

Which of the following is a use of alum

s - block Elements (Alkali and Alkaline Earth Metals)

Alum helps in purifying water by_________

s - block Elements (Alkali and Alkaline Earth Metals)

Why does bleeding stop by rubbing moist alum?

s - block Elements (Alkali and Alkaline Earth Metals)

When a solution of sodium hydroxide is added in excess to the solution of potash alum, we obtain:

s - block Elements (Alkali and Alkaline Earth Metals)

When a solution of sodium hydroxided in excess to the solution of postah alum, we get :

s - block Elements (Alkali and Alkaline Earth Metals)

Alums are used for_________

s - block Elements (Alkali and Alkaline Earth Metals)

Answer the following Name the two metals present in common alum.

s - block Elements (Alkali and Alkaline Earth Metals)

Answer the following Name the compound of aluminium which is used as germicide and coagulant in the purification of water.

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